1216098 has 24 divisors (see below), whose sum is σ = 2838108. Its totient is φ = 374112.

The previous prime is 1216091. The next prime is 1216109. The reversal of 1216098 is 8906121.

It can be written as a sum of positive squares in 2 ways, for example, as 1159929 + 56169 = 1077^2 + 237^2 .

It is not an unprimeable number, because it can be changed into a prime (1216091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2365 + ... + 2832.

2^1216098 is an apocalyptic number.

1216098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1216098 is an abundant number, since it is smaller than the sum of its proper divisors (1622010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1216098 is a wasteful number, since it uses less digits than its factorization.

1216098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1216098 is about 1102.7683346923. The cubic root of 1216098 is about 106.7389332333.

It can be divided in two parts, 12 and 16098, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 1216098 in words is "one million, two hundred sixteen thousand, ninety-eight".